Date: Tue, 27 Feb 18 01:30:12 GMT Subject: hep-lat daily 3 new + 2 crosses received by eprepget ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ Send any comments regarding submissions directly to submitter. ------------------------------------------------------------------------------ Archives at http://arxiv.org/ To unsubscribe, e-mail To: hep-lat@arXiv.org, Subject: cancel ------------------------------------------------------------------------------ received by eprepget from Thu 22 Feb 18 19:00:00 GMT to Mon 26 Feb 18 19:00:00 GMT ------------------------------------------------------------------------------ \\ arXiv:1802.09339 Date: Mon, 26 Feb 2018 14:46:15 GMT (383kb) Title: The QCD axion beyond the classical level: A lattice study Authors: Y. Nakamura and G. Schierholz Categories: hep-lat hep-ph hep-th nucl-th Comments: 10 pages, 5 figures Report-no: DESY 18-023 \\ The axion is a hypothetical elementary particle postulated by the Peccei-Quinn theory to resolve the strong CP problem in QCD. If axions exist and have low mass, they are a candidate for dark matter as well. So far our knowledge of the properties of the QCD axion rests on semi-classical arguments and effective theory. In this Letter we perform a fully dynamical investigation of the Peccei-Quinn theory, focussing on the impact of QCD on key axion parameters, by simulating the Peccei-Quinn-Weinberg-Wilczek action on the lattice. The results of the simulation, including the axion mass and effective potential, are found to be in contradiction with current axion phenomenology and question the validity and use of the Peccei-Quinn theory. \\ ( https://arxiv.org/abs/1802.09339 , 383kb) ------------------------------------------------------------------------------ \\ arXiv:1802.09408 Date: Mon, 26 Feb 2018 15:45:06 GMT (65kb,D) Title: Lattice QCD with QCDLAB Authors: Artan Borici Categories: hep-lat Comments: 20 pages, Proceedings of the 1st School for Particle and Astroparticle Physics, 23-26 January 2018, Tirana, Albania \\ QCDLAB is a set of programs, written in GNU Octave, for lattice QCD computations. Version 2.0 includes the generation of configurations for the SU(3) theory, computation of rectangle Wilson loops as well as the low lying meson spectrum. In this paper, we give a brief tutorial on lattice QCD computations using QCDLAB. \\ ( https://arxiv.org/abs/1802.09408 , 65kb) ------------------------------------------------------------------------------ \\ arXiv:1802.09417 Date: Mon, 26 Feb 2018 16:01:13 GMT (25kb,D) Title: Baryon bags in strong coupling QCD Authors: Christof Gattringer Categories: hep-lat cond-mat.other hep-ph \\ We discuss lattice QCD with one flavor of staggered fermions and show that in the path integral the baryon contributions can be fully separated from quark and diquark contributions. The baryonic degrees of freedom are independent of the gauge field and the corresponding free fermion action describes the baryons through the joint propagation of three quarks. The non-baryonic dynamics is described by quark and diquark terms that couple to the gauge field. When evaluating the quark and diquark contributions in the strong coupling limit the partition function completely factorizes into baryon bags and a complementary domain. Baryon bags are regions in space-time where the dynamics is described by a single free fermion made out of three quarks propagating coherently as a baryon. Outside the baryon bags the relevant degrees of freedom are monomers and dimers for quarks and diquarks. The partition sum is a sum over all baryon bag configurations and for each bag a free fermion determinant appears as a weight factor. \\ ( https://arxiv.org/abs/1802.09417 , 25kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- ------------------------------------------------------------------------------ \\ arXiv:1802.08543 (*cross-listing*) Date: Fri, 23 Feb 2018 14:29:37 GMT (1413kb,D) Title: Large-$N$ $\mathbb{CP}^{N-1}$ sigma model on a finite interval: general Dirichlet boundary conditions Authors: Stefano Bolognesi, Sven Bjarke Gudnason, Kenichi Konishi, Keisuke Ohashi Categories: hep-th hep-lat Comments: Latex, 19 figures Report-no: IFUP-TH-2018 \\ This is the third of the series of articles on the large-$N$ two-dimensional $\mathbb{CP}^{N-1}$ sigma model, defined on a finite space interval $L$ with Dirichlet boundary conditions. Here the cases of the general Dirichlet boundary conditions are studied, where the relative $\mathbb{CP}^{N-1}$ orientations at the two boundaries are generic, and numerical solutions are presented. Distinctive features of the $\mathbb{CP}^{N-1}$ sigma model, as compared e.g., to an $O(N)$ model, which were not entirely evident in the basic properties studied in the first two articles in the large $N$ limit, manifest themselves here. It is found that the total energy is minimized when the fields are aligned in the same direction at the two boundaries. \\ ( https://arxiv.org/abs/1802.08543 , 1413kb) ------------------------------------------------------------------------------ \\ arXiv:1802.08596 (*cross-listing*) Date: Fri, 23 Feb 2018 15:28:30 GMT (43kb) Title: Static memory materials Authors: D. Sexty, C. Wetterich Categories: cond-mat.stat-mech hep-lat quant-ph Comments: 6 pages, 7 figures \\ We simulate static memory materials on a two-dimensional lattice. The bulk properties of such materials depend on boundary conditions. Considerable information can be stored in various local patterns. We observe local probabilities oscillating with the distance from the boundary. The dependence of the local statistical information on this distance can be described by a linear evolution of classical wave functions, including the superposition principle and classical interference. We speculate that these new phenomena could open new algorithmic possibilities analogous to quantum computing. \\ ( https://arxiv.org/abs/1802.08596 , 43kb) %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% ------------------------------------------------------------------------------ \\ arXiv:1709.06323 (*cross-listing*) replaced with revised version Fri, 23 Feb 2018 11:50:39 GMT (75kb,D) Title: One-dimensional anyons in relativistic field theory Authors: Arata Yamamoto Categories: hep-th cond-mat.stat-mech hep-lat \\ ( https://arxiv.org/abs/1709.06323 , 75kb) ------------------------------------------------------------------------------ \\ arXiv:1711.02319 replaced with revised version Fri, 23 Feb 2018 10:56:45 GMT (33kb) Title: O(a) Improvement of 2D N=(2,2) Lattice SYM Theory Authors: Masanori Hanada, Daisuke Kadoh, So Matsuura, Fumihiko Sugino Categories: hep-lat hep-th Comments: 42 pages, no figure; (v2) published version in Nucl. Phys. B Report-no: YITP-17-57 \\ ( https://arxiv.org/abs/1711.02319 , 33kb) ------------------------------------------------------------------------------ \\ arXiv:1712.05536 replaced with revised version Fri, 23 Feb 2018 06:36:58 GMT (313kb,D) Title: Can axial U(1) anomaly disappear at high temperature? Authors: Hidenori Fukaya (for JLQCD collaboration) Categories: hep-lat Comments: 11 pages, 5 figures, talk given at the 35th International Symposium on Lattice Field Theory, 18-24 June 2017, Granada, Spain, references added Report-no: OU-HET-952 \\ ( https://arxiv.org/abs/1712.05536 , 313kb) ------------------------------------------------------------------------------ \\ arXiv:1802.01876 replaced with revised version Fri, 23 Feb 2018 02:00:48 GMT (47kb) Title: Testing the criterion for correct convergence in the complex Langevin method Authors: Keitaro Nagata, Jun Nishimura, Shinji Shimasaki Categories: hep-lat Comments: 16 pages, 2 figures; (v2) reference and comment added; (v3) minor revision Report-no: KEK-TH-2032 \\ ( https://arxiv.org/abs/1802.01876 , 47kb) ------------------------------------------------------------------------------ \\ arXiv:1802.07718 replaced with revised version Thu, 22 Feb 2018 20:05:21 GMT (980kb,D) Title: High statistics lattice study of stress tensor correlators in pure $SU(3)$ gauge theory Authors: Szabolcs Borsanyi, Attila Pasztor, Zoltan Fodor, Matteo Giordano, Sandor D. Katz, Attila Pasztor, Claudia Ratti, Andreas Schaefer, Kalman K. Szabo, Balint C. Toth Categories: hep-lat \\ ( https://arxiv.org/abs/1802.07718 , 980kb) ------------------------------------------------------------------------------ \\ arXiv:1710.11013 (*cross-listing*) replaced with revised version Mon, 26 Feb 2018 13:26:20 GMT (141kb,D) Title: Combining Tensor Networks with Monte Carlo Methods for Lattice Gauge Theories Authors: Erez Zohar and J. Ignacio Cirac Categories: quant-ph hep-lat hep-th Journal-ref: Phys. Rev. D 97, 034510 (2018) DOI: 10.1103/PhysRevD.97.034510 \\ ( https://arxiv.org/abs/1710.11013 , 141kb) ------------------------------------------------------------------------------ \\ arXiv:1712.07562 replaced with revised version Sun, 25 Feb 2018 15:59:02 GMT (86kb) Title: Complex Langevin analysis of the spontaneous symmetry breaking in dimensionally reduced super Yang-Mills models Authors: Konstantinos N. Anagnostopoulos, Takehiro Azuma, Yuta Ito, Jun Nishimura, Stratos Kovalkov Papadoudis Categories: hep-lat hep-th Comments: 19 pages, 12 figures, (v2) minor revisions; the final version published in JHEP Report-no: KEK-TH-2023 Journal-ref: JHEP02(2018)151 DOI: 10.1007/JHEP02(2018)151 \\ ( https://arxiv.org/abs/1712.07562 , 86kb) ------------------------------------------------------------------------------ \\ arXiv:1802.02542 replaced with revised version Sun, 25 Feb 2018 20:53:14 GMT (16kb) Title: Disordered fermions, extra dimensions and a solvable Yang-Mills theory Authors: Artan Borici Categories: hep-lat hep-th Comments: 17 pages. Minor revision in text to emphasize the large number of flavors in the case of asymptotic safe QCD \\ ( https://arxiv.org/abs/1802.02542 , 16kb) %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- For subscribe options to combined physics archives, e-mail To: physics@arxiv.org, Subject: subscribe ----------------------------------------------------------------------------- For help on viewing and making submissions, see http://arxiv.org/help/